Capital Stock (Details Textual)	1 Months Ended		12 Months Ended	1 Months Ended
	Oct. 31, 2013	Mar. 31, 2013	Dec. 31, 2014	Jan. 02, 2015	Dec. 31, 2013	May 31, 2012
Class of Stock [Line Items]
Preferred Stock, Shares Authorized			2,000,000		2,000,000
Stockholders Equity Note, Stock Split		In March of 2013, the Company performed an 80,000-for-1 stock split to achieve a desired 8 million shares outstanding.
Stockholders Equity, Reverse Stock Split	Immediately prior to the Distribution on October 31, 2013 HART affected a reverse stock split so that shares outstanding became 7.7 million to facilitate the 1-for-4 ratio for the Distribution. The distribution of the 7.7 million HART common shares to the shareholders of Harvard Bioscience is reflected as an issuance of common stock in the consolidated statements of stockholders equity.
Common Stock, Shares, Issued			7,856,607		7,742,080
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent			85.00%
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized			150,000
Acquiring Percentage of Common Stock to Exercise of Rights Under Shareholder Rights Plan			20.00%
Shares, Issued						100
Subsequent Event [Member]
Class of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period				17,042
Subsequent Event [Member] | Common Stock [Member]
Class of Stock [Line Items]
Common Stock, Shares, Issued			2,070,000
Series B Preferred Stock [Member] | Subsequent Event [Member]
Class of Stock [Line Items]
Convertible Preferred Stock, Shares Reserved for Future Issuance			695,857