Deferred Income Tax Assets and Liabilities (Detail) (USD $)	Dec. 31, 2011	Dec. 31, 2010
Deferred tax assets:
Amortization of software intangibles	$ 2,494,223	$ 3,300,881
Stock-based compensation	1,410,975	1,278,405
State net operating loss carryforwards	483,794	894,817
Amortization of internal use software development costs	1,055,733	829,777
Accrued vacation	690,095	619,728
Deferred rent	310,633	274,042
Allowance for doubtful accounts	206,452	213,189
Other	152,366	164,138
Deferred Tax Assets, Gross, Total	6,804,271	7,574,977
Less: Valuation allowance	(422,564)	(585,926)
Total	6,381,707	6,989,051
Deferred tax liabilities:
Depreciation & capitalized internal use software development costs	(4,113,178)	(2,464,981)
Deferred tax liability on nonrecurring gain on acquisition of business	(1,186,207)	(1,173,816)
Other	(83,285)	(180,669)
Total	(5,382,670)	(3,819,466)
Net deferred tax asset	$ 999,037	$ 3,169,585