Long-Term Debt - Additional Information (Detail) - USD ($)
|
3 Months Ended |
|
|
May 31, 2016 |
Feb. 29, 2016 |
May 31, 2015 |
| Revolving Credit Facility [Member] |
|
|
|
| Line of Credit Facility [Line Items] |
|
|
|
| Revolving credit facility, outstanding borrowings |
$ 35,000,000
|
$ 40,000,000
|
|
| Second Amendment [Member] | Revolving Credit Facility [Member] |
|
|
|
| Line of Credit Facility [Line Items] |
|
|
|
| Revolving credit facility, interest rate description |
London Interbank Offered Rate ("LIBOR") plus a spread ranging from 1.0% to 2.25%, or 1.8% (LIBOR + 1.25%) at May 31, 2016 and 1.76%
|
|
|
| Revolving credit facility, interest rate variable basis spread, option one |
1.80%
|
|
1.76%
|
| Revolving credit facility, interest rate variable basis spread, option two |
1.25%
|
|
1.25%
|
| Second Amendment [Member] | Revolving Credit Facility [Member] | Minimum [Member] |
|
|
|
| Line of Credit Facility [Line Items] |
|
|
|
| Revolving credit facility, variable basis spread |
1.00%
|
|
|
| Second Amendment [Member] | Revolving Credit Facility [Member] | Maximum [Member] |
|
|
|
| Line of Credit Facility [Line Items] |
|
|
|
| Revolving credit facility, variable basis spread |
2.25%
|
|
|
| Third Amendment [Member] | Standby Letters of Credit [Member] |
|
|
|
| Line of Credit Facility [Line Items] |
|
|
|
| Revolving credit facility, outstanding borrowings |
$ 2,100,000
|
|
|
| Revolving credit facility, remaining borrowing capacity |
62,900,000
|
|
|
| Fourth Amendment [Member] | Revolving Credit Facility [Member] |
|
|
|
| Line of Credit Facility [Line Items] |
|
|
|
| Revolving credit facility, maximum borrowing capacity |
100,000,000
|
|
|
| Minimum tangible net worth required |
$ 75,000,000
|
|
|
| Minimum tangible net worth percentage |
25.00%
|
|
|
| Credit facility maturity date |
Aug. 18, 2016
|
|
|
| Extend credit facility maturity date |
Aug. 19, 2017
|
|
|
| Fourth Amendment [Member] | Revolving Credit Facility [Member] | In certain circumstances [Member] |
|
|
|
| Line of Credit Facility [Line Items] |
|
|
|
| Revolving credit facility, maximum borrowing capacity |
$ 150,000,000
|
|
|