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Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Cash flows from operating activities:    
Net income $ 2,502 $ 2,744
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 384 579
Discontinued operations: gain on sale of Fly.com domain name 0 (2,890)
Provision for losses (gains) on accounts receivable (83) 7
Stock-based compensation 173 240
Deferred income tax (110) (36)
Net foreign currency effect (171) (89)
Changes in operating assets and liabilities:    
Accounts receivable (997) 287
Income tax receivable 428 544
Prepaid expenses and other (10) (86)
Accounts payable (3,185) (3,263)
Accrued expenses 1,024 990
Income tax payable 217 1,466
Other non-current liabilities 7 62
Net cash provided by operating activities 179 555
Cash flows from investing activities:    
Proceeds from sale of Fly.com domain name 0 2,890
Purchases of property and equipment (65) (120)
Net cash provided by (used in) investing activities (65) 2,770
Cash flows from financing activities:    
Repurchase of common stock 0 (1,762)
Net cash used in financing activities 0 (1,762)
Effect of exchange rate changes on cash and cash equivalents 456 171
Net increase in cash, cash equivalents and restricted cash 570 1,734
Cash, cash equivalents and restricted cash at beginning of period 24,001 28,236
Cash, cash equivalents and restricted cash at end of period 24,571 29,970
Supplemental disclosure of cash flow information:    
Cash paid for income taxes, net $ 779 $ 310