INCOME TAXES (Details) (USD $)	3 Months Ended								12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Reconciliation of unrecognized tax benefits [Roll Forward]
Beginning balance				$ 316,000				$ 316,000	$ 316,000	$ 316,000
Reductions to uncertain tax positions									(167,000)	0
Ending balance	149,000				316,000				149,000	316,000	316,000
Unrecognized tax benefits that would impact effective tax rate	193,000				434,000				193,000	434,000
Interest on income taxes expense included in statement of operation									7,000	17,000
Accrued interest on income taxes	65,000				197,000				65,000	197,000
Reconciliation of income taxes to the statutory rate [Abstract]
Statutory federal income tax rate (in hundredths)									35.00%	35.00%	35.00%
Income tax expense computed at the U.S. statutory federal rate									21,040,000	20,555,000	13,850,000
State income tax expense - net of federal benefit									3,080,000	2,894,000	2,096,000
Non-deductible executive compensation									248,000	150,000	152,000
Other									457,000	316,000	109,000
Provision for income taxes									24,825,000	23,915,000	16,207,000
Effective income tax rate (in hundredths)									41.30%	40.70%	41.00%
Current:
Federal									23,313,000	20,041,000	12,266,000
State									5,033,000	4,453,000	3,088,000
Foreign									15,000	36,000	59,000
Total current expense									28,361,000	24,530,000	15,413,000
Deferred:
Federal									(3,274,000)	(581,000)	814,000
State									(262,000)	(34,000)	(20,000)
Total deferred expense (benefit)									(3,536,000)	(615,000)	794,000
Provision for income taxes	5,775,000	7,443,000	6,104,000	5,503,000	5,043,000	6,496,000	6,875,000	5,501,000	24,825,000	23,915,000	16,207,000
Deferred Tax Assets:
Accrued vacation	1,700,000				1,345,000				1,700,000	1,345,000
Provision for credit losses	2,111,000				1,997,000				2,111,000	1,997,000
State net operating loss carryforward	1,287,000				1,505,000				1,287,000	1,505,000
Book compensation on discounted stock options	0				77,000				0	77,000
Deferred compensation	1,010,000				898,000				1,010,000	898,000
Deferred revenue	260,000				221,000				260,000	221,000
Foreign tax credit	11,000				0				11,000	0
Federal net operating loss carry forward	88,000				168,000				88,000	168,000
Other accruals and reserves	1,740,000				2,043,000				1,740,000	2,043,000
Gross deferred tax assets	8,207,000				8,254,000				8,207,000	8,254,000
Less: valuation allowance	(1,287,000)				(1,505,000)				(1,287,000)	(1,505,000)
Net deferred tax assets	6,920,000				6,749,000				6,920,000	6,749,000
Deferred Tax Liabilities:
Basis difference in fixed assets	(1,056,000)				(491,000)				(1,056,000)	(491,000)
Basis difference in operating lease items	(4,674,000)				(8,765,000)				(4,674,000)	(8,765,000)
Basis difference in tax deductible goodwill	(2,449,000)				(2,288,000)				(2,449,000)	(2,288,000)
Total deferred tax liabilities	(8,179,000)				(11,544,000)				(8,179,000)	(11,544,000)
Net deferred tax liabilities	(1,259,000)				(4,795,000)				(1,259,000)	(4,795,000)
Reported as : [Abstract]
Deferred tax assets	3,742,000				2,023,000				3,742,000	2,023,000
Deferred tax liabilities - long-term	(5,001,000)				(6,818,000)				(5,001,000)	(6,818,000)
Net deferred tax liabilities	(1,259,000)				(4,795,000)				(1,259,000)	(4,795,000)
State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 29,000,000								$ 29,000,000
Expiration date									2024