Share Based Compensation (Tables)

12 Months Ended

Dec. 31, 2014

Stock Based Compensation [Line Items]

Schedule of Share-based Compensation, Activity [Table Text Block]

Harvard Bioscience Plan Award Information

The following is a summary of stock option and restricted stock unit activity:

	Stock Options			Restricted Stock Units
	Stock Options Outstanding	Weighted Average Exercise Price		Restricted Stock Units Outstanding	Grant Date Fair Value
Balance at December 31, 2012	622,340	$	4.07	184,264	$	3.90
Granted	217,902		5.08	63,929		5.08
Exercised	(487,031)		3.33	—		—
Vested (RSUs)	—		—	(55,247)		—
Cancelled/forfeited	(29,972)		4.34	(10,892)		3.83
Adjustment (1)	2,177,100			144,131
Balance at December 31, 2013	2,500,339		3.20	326,185		5.46
Granted	—		—	—		—
Exercised	(66,056)		3.34	—		—
Vested (RSUs)	—		—	(154,628)		—
Cancelled/forfeited	(311,635)		5.58	—		—
Balance at December 31, 2014	2,122,648	$	2.84	171,557	$	5.67

(1)

Prior to the Separation, this rollforward included only those Harvard Bioscience options and restricted stock units which were issued while giving service to the regenerative technology operations of Harvard Bioscience. If employees were splitting time between regenerative technology and other parts of Harvard Bioscience, only an allocated portion of that year’s activity would be reflected. As of the time of the Separation, the rollfoward was “Adjusted” to exclude all Harvard Bioscience employees not employed by HART at the time of the Separation, and to include 100% of the Harvard Bioscience awards held by HART employees (regardless of level of service in prior years).

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

The following table summarizes information concerning the Harvard Bioscience Plan currently outstanding and exercisable options as of December 31, 2014:

	Options Outstanding								Options Exercisable
			Weighted								Weighted
	Number		Average		Weighted				Shares		Average		Weighted
Range of	Outstanding at		Remaining		Average		Aggregate		Exercisable at		Remaining		Average		Aggregate
Exercise	December		Contractual Life		Exercise		Intrinsic		December		Contractual Life		Exercise		Intrinsic
Price	31. 2014		in Years		Price		Value		31. 2014		in Years		Price		Value
$1.43 - 2.59		1,365,645		5.07	$	2.26	$	4,651,366		1,188,461		4.71	$	2.22	$	4,100,190
3.64		246,575		8.41		3.64		500,547		56,663		8.41		3.64		115,026
3.71 - 3.99		276,653		2.33		3.98		468,475		276,653		2.33		3.98		468,475
4.04		233,775		6.42		4.04		381,053		175,332		6.42		4.04		285,791
$1.43- 4.04		2,122,648		5.25	$	2.84	$	6,001,441		1,697,109		4.62	$	2.74	$	4,969,482

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

Harvard Bioscience Plan Valuation and Expense Information under Stock-Based-Payment Accounting

Stock-based compensation expense related to Harvard Bioscience employee stock options and restricted stock units for the years ended December 31, 2014 and 2013 was allocated as follows:

	Years Ended December 31,
	2014		2013
	(in thousands)

Research and development	$	66	$	136
Sales and marketing		14		16
General and administrative		683		622
Total stock-based compensation	$	763	$	774

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

The weighted-average estimated value of Harvard Bioscience employee stock options granted during 2013 was $2.64, using the Black-Scholes model with the following weighted-average assumptions:

	Year Ended December 31,
	2013
Volatility	57.18	%
Risk-free interest rate	1.42	%
Expected holding period	5.67 years
Dividend yield	-	%

Equity Incentive Plan 2013 [Member]

Stock Based Compensation [Line Items]

Schedule of Share-based Compensation, Activity [Table Text Block]

The following is a summary of stock option and restricted stock unit activity:

	Stock Options			Restricted Stock Units
	Stock Options Outstanding	Weighted Average Exercise Price		Restricted Stock Units Outstanding	Grant Date Fair Value
Balance at December 31, 2012	-	$	-	-	$	-
Granted	2,117,226		4.36	23,715		6.00
Exercised	(693)		5.38	-		-
Vested (RSUs)	-		-	(2,021)		-
Cancelled/forfeited	(40,826)		4.96	(2,202)		-
Balance at December 31, 2013	2,075,707		4.34	19,492		6.00
Granted	237,500		7.93	-		-
Exercised	(115,950)		4.90	(9,796)		-
Vested (RSUs)	-		-	-		-
Cancelled/forfeited	(190,277)		4.42	(1,716)		-
Balance at December 31, 2014	2,006,980	$	4.73	7,980	$	6.00

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

The following table summarizes information concerning 2013 Plan currently outstanding and exercisable options as of December 31, 2014:

	Options Outstanding								Options Exercisable
			Weighted								Weighted
	Number		Average		Weighted				Shares		Average		Weighted
Range of	Outstanding at		Remaining		Average		Aggregate		Exercisable at		Remaining		Average		Aggregate
Exercise	December		Contractual Life		Exercise		Intrinsic		December		Contractual Life		Exercise		Intrinsic
Price	31. 2014		in Years		Price		Value		31. 2014		in Years		Price		Value

$2.05 - 3.60		54,108		4.05	$	3.13	$	2,705		54,108		4.05	$	3.13	$	2,705
3.61 - 5.16		1,668,023		8.80		4.28		-		508,375		8.59		4.28		-
5.17-6.72		77,349		6.27		5.52		-		50,114		5.35		5.61		-
6.73 - 8.28		57,500		9.76		7.32		-		-		-		-		-
8.29 - 9.84		150,000		9.34		8.87		-		-		-		-		-
$2.05- 9.84		2,006,980		8.64	$	4.73	$	2,705		612,597		7.92	$	4.28	$	2,705

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

2013 Plan Valuation and Expense Information under Stock-Based-Payment Accounting

Stock-based compensation expense related to the 2013 Plan including employee stock options, restricted stock units, and the employee stock purchase plan for the years ended December 31, 2014 and 2013 was allocated as follows:

	Years Ended December 31,
	2014		2013
	(in thousands)

Research and development	$	554	$	39
Sales and marketing		94		32
General and administrative		1,154		525
Total stock-based compensation	$	1,802	$	596

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

The weighted-average estimated value of employee stock options granted during 2014 and 2013 was $5.25 and $3.33, respectively, using the Black Scholes model with the following weighted-average assumptions:

	Year Ended December 31,
	2014		2013
Volatility	74.00	%	73.59	%
Risk-free interest rate	1.61	%	2.01	%
Expected holding period	6.25 years		5.81 years
Dividend yield	-	%	-	%