Condensed Consolidated Balance Sheet - USD ($)	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 20,928,961	$ 30,754,930
Accounts receivable, net of allowance for doubtful accounts of $1,759 and $1,231, respectively	200,628,659	188,818,864
Unbilled revenue	34,547,963	30,758,319
Inventories	34,715,322	33,327,320
Prepaid expenses	12,956,761	14,352,955
Other current assets	16,707,629	31,824,899
Total current assets	320,485,295	329,837,287
Property and equipment, net	33,208,007	32,681,365
Intangibles and other assets:
Goodwill	206,069,175	206,256,665
Intangible assets, net	36,576,675	37,715,165
Deferred income taxes	787,927	586,473
Other non-current assets	1,469,301	1,389,830
Total intangibles and other assets	244,903,078	245,948,133
Total assets	598,596,380	608,466,785
Current liabilities:
Accounts payable	130,047,535	170,243,820
Current portion of contingent consideration	11,130,816	11,386,914
Due to seller	3,603,881	402,499
Accrued expenses	35,376,633	31,363,066
Other current liabilities	17,129,364	11,602,465
Total current liabilities	197,288,229	224,998,764
Revolving credit facility	118,615,200	99,257,684
Deferred income taxes	13,168,276	12,897,935
Contingent consideration, net of current portion	9,187,597	10,774,908
Other non-current liabilities	2,771,604	2,509,604
Total liabilities	$ 341,030,906	$ 350,438,895
Commitments and contingencies (See Note 11)
Stockholders' equity:
Common stock, par value $0.0001 per share, 200,000 and 200,000 shares authorized, 62,867 and 62,645 shares issued, 53,321 and 53,098 shares outstanding, respectively	$ 6,288	$ 6,265
Additional paid-in capital	215,723,193	213,566,347
Treasury stock at cost, 9,547 shares	(52,207,366)	(52,207,366)
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	(14,462,926)	(13,992,518)
Retained earnings	108,506,285	110,655,162
Total stockholders' equity	257,565,474	258,027,890
Total liabilities and stockholders' equity	$ 598,596,380	$ 608,466,785