|
Note 2 - Cash, Cash Equivalents and Investments (Details) (USD $)
|
11 Months Ended |
12 Months Ended |
|
|
Dec. 31, 2013
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2009
|
Dec. 31, 2011
|
| Note 2 - Cash, Cash Equivalents and Investments (Details) [Line Items] |
|
|
|
|
|
| Auction Rate Securities, Noncurrent |
$ 9,860,000 |
$ 9,860,000 |
$ 11,755,000 |
|
$ 13,675,000 |
| Auction Rate Securities, Maturity |
|
|
34 years |
|
|
| Available-for-sale Securities, Gross Realized Gain (Loss) |
|
|
|
70,000 |
|
| Percentage of Auction Rate Securities Redeemed at Par Value |
76.00% |
|
|
|
|
| Deferred Compensation Plan Assets |
607,000 |
607,000 |
|
|
|
| Deferred Compensation Plan Liabilities |
628,000 |
628,000 |
|
|
|
| Deferred Compensation Plan Assets Change in Fair Value Expense |
|
10,000 |
|
|
|
| Deferred Compensation Plan Liabilities, Operating Expense |
|
11,000 |
|
|
|
|
Temporary [Member]
|
|
|
|
|
|
| Note 2 - Cash, Cash Equivalents and Investments (Details) [Line Items] |
|
|
|
|
|
| Other than Temporary Impairment Losses, Investments |
|
360,000 |
490,000 |
|
|
|
Other Than Temporary [Member]
|
|
|
|
|
|
| Note 2 - Cash, Cash Equivalents and Investments (Details) [Line Items] |
|
|
|
|
|
| Other than Temporary Impairment Losses, Investments |
|
30,000 |
30,000 |
|
|
|
Government Backed Securities [Member]
|
|
|
|
|
|
| Note 2 - Cash, Cash Equivalents and Investments (Details) [Line Items] |
|
|
|
|
|
| Auction Rate Securities, Noncurrent |
|
|
2,100,000 |
|
|
|
Auction Rate Securities [Member]
|
|
|
|
|
|
| Note 2 - Cash, Cash Equivalents and Investments (Details) [Line Items] |
|
|
|
|
|
| Other than Temporary Impairment Losses, Investments |
|
|
40,000 |
|
|
| Gain (Loss) on Investments |
|
|
40,000 |
|
|
|
Auction Rate [Member]
|
|
|
|
|
|
| Note 2 - Cash, Cash Equivalents and Investments (Details) [Line Items] |
|
|
|
|
|
| Other than Temporary Impairment Losses, Investments |
|
|
520,000 |
|
|
|
Auction Rate Securities Backed By Student-Loan Notes [Member]
|
|
|
|
|
|
| Note 2 - Cash, Cash Equivalents and Investments (Details) [Line Items] |
|
|
|
|
|
| Other than Temporary Impairment Losses, Investments |
|
390,000 |
|
|
|
|
Government Backed Securities [Member]
|
|
|
|
|
|
| Note 2 - Cash, Cash Equivalents and Investments (Details) [Line Items] |
|
|
|
|
|
| Auction Rate Securities, Noncurrent |
$ 9,900,000 |
$ 9,900,000 |
|
|
|