Information about other cash flow activities during the years ended December 31, 2011, 2012 and 2013 are as follows:

(in thousands)	2011			2012		2013

SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid for:
Interest	$	1,620		$	127	$	86
Income tax payments	$	259		$	284	$	388
State income tax credits (redeemed for cash)	$	(37	)	$	—	$	—
NON-CASH TRANSACTIONS:
Contingent consideration issued in connection with HCL-EMS acquisition	$	3,390		$	—	$	—
Deferred purchase price in connection with Telwares acquisition	$	2,155		$	—	$	—
Deferred purchase price in connection with ProfitLine acquisition	$	8,674		$	—	$	—
Deferred purchase price in connection with Anomalous acquisition	$	—		$	950	$	—
Deferred purchase price in connection with ttMobiles acquisition	$	—		$	2,315	$	—
Deferred purchase price in connection with Symphony acquisition	$	—		$	10,942	$	—
Deferred purchase price in connection with oneTEM acquisition	$	—		$	—	$	616
Preferred stock dividends and accretion	$	2,205		$	—	$	—
Issuance of warrants in connection with notes payable and marketing agreement	$	2,598		$	—	$	—
Computer, furniture and equipment acquired with capital lease	$	746		$	—	$	—
Conversion of warrants for redeemable convertible preferred stock and preferred stock warrants	$	64,017		$	—	$	—
Issuance of common stock in payment of board of directors fees	$	—		$	21	$	—
Cashless exercise of warrants	$	19		$	—	$	—
Repurchase of common stock settled in January 2013	$	—		$	1,696	$	—