Note A - Description of Business and Basis of Presentation (Details Textual)
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|
1 Months Ended |
12 Months Ended |
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|
Apr. 02, 2015 |
May 31, 2015
USD ($)
$ / shares
shares
|
Apr. 30, 2015
$ / shares
shares
|
Dec. 31, 2016
USD ($)
$ / shares
shares
|
Dec. 31, 2015
USD ($)
$ / shares
shares
|
Dec. 31, 2014
USD ($)
|
Oct. 17, 2016
USD ($)
|
Oct. 03, 2016
USD ($)
|
| Stockholders' Equity Note, Stock Split, Conversion Ratio |
7.5
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|
|
|
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|
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| Proceeds from Issuance Initial Public Offering |
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|
|
|
$ 59,892,000
|
|
|
|
| Common Stock, Shares Authorized | shares |
|
250,000,000
|
250,000,000
|
250,000,000
|
250,000,000
|
|
|
|
| Preferred Stock, Shares Authorized | shares |
|
10,000,000
|
10,000,000
|
10,000,000
|
10,000,000
|
|
|
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| Common Stock, Par or Stated Value Per Share | $ / shares |
|
$ 0.0001
|
|
$ 0.0001
|
$ 0.0001
|
|
|
|
| Preferred Stock, Par or Stated Value Per Share | $ / shares |
|
0.0001
|
$ 0.0001
|
$ 0.0001
|
$ 0.0001
|
|
|
|
| Unamortized Debt Issuance Expense |
|
|
|
|
$ 1,100,000
|
|
|
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| Other Noncurrent Assets [Member] |
|
|
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|
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| Deferred Offering Costs |
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|
|
$ 200,000
|
|
|
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| Cowen and Company, LLC [Member] |
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|
|
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|
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| Sale of Stock, Authorized Offering Price |
|
|
|
|
|
|
$ 20,000,000
|
|
| Sale of Stock, Commission Fee |
|
|
|
|
|
|
3.00%
|
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| Cowen and Company, LLC [Member] | Maximum [Member] |
|
|
|
|
|
|
|
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| Sale of Stock, Authorized Offering Price |
|
|
|
|
|
|
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$ 50,000,000
|
| IPO [Member] |
|
|
|
|
|
|
|
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| Stock Issued During Period, Shares, New Issues | shares |
|
|
5,090,909
|
|
|
|
|
|
| Shares Issued, Price Per Share | $ / shares |
|
$ 11
|
$ 11
|
|
|
|
|
|
| Additional Common Stock Issued During Period |
|
$ 763,636
|
|
|
|
|
|
|
| Proceeds from Issuance Initial Public Offering |
|
59,900,000
|
|
|
|
|
|
|
| Underwriting Discounts and Commissions |
|
4,500,000
|
|
|
|
|
|
|
| Offering Expenses |
|
$ 2,800,000
|
|
|
|
|
|
|
| Stock Issued During Period, Shares, Conversion of Convertible Securities | shares |
|
5,980,564
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