Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 55,086	$ 47,241	$ 20,370
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	394	263	105
Stock-based compensation	104	86	49
Cumulative translation adjustment realized in net income	132	(82)	0
Deferred Income Tax Expense (Benefit)	217	(15)	(43)
Changes in assets and liabilities:
Inventories, net	(851)	(6,762)	(2,029)
Other current assets	(1,681)	(1,025)	(501)
Other assets	(90)	(267)	(85)
Accounts payable	(714)	637	(822)
Income taxes payable	303	(115)	243
Accrued commissions	(6,031)	10,840	5,077
Other accrued expenses	51	10,714	3,706
Deferred revenue	947	1,331	147
Amounts held in eWallets	2,752	14,350	2,065
Other current liabilities	135	25	666
Long-term incentive	2,420	4,105	1,665
Net cash provided by operating activities	53,174	81,326	30,613
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(905)	(710)	(339)
Increase in restricted cash	0	(3,028)	0
Net cash used in investing activities	(905)	(3,738)	(339)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from exercise of warrants	0	309	4,948
Repurchase of common stock	(23,704)	(16,071)	(4,661)
Dividends paid	(6,891)	(1,709)	(476)
Net cash used in financing activities	(30,595)	(17,471)	(189)
Effect of exchange rates on cash and cash equivalents	(667)	(19)	181
Net increase in cash and cash equivalents	21,007	60,098	30,266
CASH AND CASH EQUIVALENTS, beginning of period	104,914	44,816	14,550
CASH AND CASH EQUIVALENTS, end of period	$ 125,921	$ 104,914	$ 44,816